Hole saw



FIG. 1 is a front elevational view of a hole saw showing the present invention;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a perspective view thereof;

FIG. 5 is left-side elevational view thereof;

FIG. 6 is right-side elevational view thereof; and,

FIG. 7 is rear view elevational thereof.

The broken lines in the figures show structure or boundaries that are not part of the claimed design. 

CLAIM The ornamental design for hole saw, as shown and described. 